Louis hillebeand



(Model.)

L. HILLBBRAND.

PADLOGK. No. 348,521. Patented Aug. 31, 1886. lgd. WN I i l y- -l --yJ'v'g".ze J'via f f/ @Y 2%/ f *J7 y l?? 5 l'vfi@ n Q s r (D WITNEssEs:Tv'. 2

LNvENTOF; @ce ffl/AML a IQ Q n GN/ Z i D UNITED STATES 'PATENT Trice.

LOUIS IIILLEBRANI), OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONEIIALFTO DANIEL VOLF, OF SAME PLACE.

PADLOCK.

SPECIFICATION forming part of Letters Patent No. 348,521, dated August31, 1886l Application filed April 29,1886. Serial No. 200.507. (ModelnTo @ZZ whom, it may concern:

Be it known that I, LoUrs HILLEBRAND, a citizen of the United States,residing in the city and countyT of Philadelphia, State of Pennsylvania,have invented a new and useful Improvement in Padlocks, whichimprovement is fully set forth in the following specification andaccompanying drawings, in which- Figure l represents a vertical sectionof a padlock embodying my invention, in line a: x, Fig. 3. Fig. 2represents a horizontal section, showing` the bolt and tumbler inunlocked position, in line yy, Fig. l. Fig. 3 represents a horizontalsection, showing the bolt and tumbler in locked position, in line y y,Fig. 1. Fig. 4 represents a face view of the lock-cover or bottom plate.Figs. 5, G, and 7 represent views, respectively, of the bolt witha`housing-plate and the bolt with a key-ward plate and the tumbler. Fig.8 represents a view of a key that may be employed.

Similar letters of reference indicate corresponding parts in the severalfigures.

My invention consists of a padlock of the order of a Scandinaviam7having a bolt whose body has narrow arms projecting from the peripherythereof, whereby the thickness of the ease vis materially reduced, thisprovision also adapting locks to be formed of an increased width withoutincreasing the thickness of the lock-case.

It also consists in providing the bolt with a tumbler which in lockedposition engages with the wall of the case.

Referring to the drawings, A represents the lockcase oi' a Scandinavianpadlock,and B the shackle thereof. Crepresents partially-rotatablebolts, which are formed of ilat plates of metal having their bodiessomewhat circular in shape, and from opposite sides thereot thereproject outwardly the arms E,which are adapted to enter the slots ornotches in the legs of the shackle IE, and thus lock the latter, thebody of each bolt being of small diameter,and revolving withinthelock-case Without engaging with said shackle. By this construction aslight rotation of the bolts is sufficient to cause the arms E to engagewith the legs of the shackle, and a thick lock-case is obviated, as saidarms play in the oblong ends of the case, and the width ofthe case isonly slightly greater than the diameters of the bodies of the bolts,thus reducing the weight of the lock and imparting a more gracefulappearance to a lock of the class, it also being noticed that thelock-case has chambers A', which are outside of the central chamber andat the ends of the lock-case in communication with the chambers whichreceive the legs of the shackles,and that when the lock is open the armsE, which are narrowand projecting from the periphery of the body of thelock,abut against the walls of said chambers A', thus stopping the rotation of the bolt, and, asis evident, limitingthe extent of rotationthereof. For a lock of increased size the case and arms are widened, butthe thickness of the case is not increased, and thus thethickness oflocks of various sizes may remain the same. Connected with each bolt isan annular-shaped piece, F,Which is cut away or formed with a throat, asat G, and forming a housing, witliin which is located a tumbler, I-I,the latter being of angular form or somewhat L-shaped and pivoted to thebolt,

one limb, c, being adapted to be engaged by a suitable key for unlockingpurposes, and the other limb, b, occupying the throat G, so that whenlocking is required the bolt is operated by the key,and the limb b ofthe tumbler moves through the throat Gr and comes in contact with thewall J, or some other stationary part within the lock-case, thussecuring the bolt and preventing unlocking action of the same-a featureof importance in alock ofthe class when employed for railroad and otherpurposes and subjected to shaking movements due to the motion of atrain, &c. A spring, K., bears against the housing or piece F and thelimb ot' the tumbler, and serves to hold the tumbler in locked position,thus insuring the locking action of the bolt.

\Vhen the padlock is to be unlocked, the key is inserted in the case Aand rotated, and the tumbler is raised and the bolt and tumbler aremoved from the position shown in Fig. 3 to that shown in Fig. 2. Eachbolt is provided with a tumbler and covered by a key-ward plate, asshown in Fig. 6, said bolt, tumbler, and plates forming one set ofworks,and several of such sets may be employed for each lock,as seen inFig. l.

Having thus described my invention, what IOC I claim as new, and desireto secure by Letters 2. A padlock of the order named, having a Patent,isshackle,a bolt, a housing secured to said bolt,

l. A padlock of the order named, having a and a spring-pressed tumbler,the latter being I5 partially-rotatable bolt consisting of a flatpivoted to the bolt and adapted to engage with 5 plate with narrow armsprojecting from the the Wall of the lock-case, the parts beingcomperiphery thereof, said arms, when the lock is bined andoperatingsubstantiall y as described. open, abutting against the wallsof the end chambers of the lock-case, thus limiting the L. HILLEBRAND.rotation of the bolt and adapting the lock to Io be made of increasedwid th without increasing Witnesses:

the thickness thereof, substantially as de- JOHN A. WIEDERSHEIM,scribed. A.v P. GRANT.

